450440454 has 16 divisors (see below), whose sum is σ = 902721600. Its totient is φ = 149840040.

The previous prime is 450440443. The next prime is 450440461. The reversal of 450440454 is 454044054.

It is a happy number.

It is a super-2 number, since 2×450440454² = 405793205199452232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73504 + ... + 79395.

It is an arithmetic number, because the mean of its divisors is an integer number (56420100).

Almost surely, 2^450440454 is an apocalyptic number.

450440454 is an abundant number, since it is smaller than the sum of its proper divisors (452281146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450440454 is a wasteful number, since it uses less digits than its factorization.

450440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153395.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 450440454 is about 21223.5824968359. The cubic root of 450440454 is about 766.5593686848.

The spelling of 450440454 in words is "four hundred fifty million, four hundred forty thousand, four hundred fifty-four".